Knife block



FIG. 1 is a front top perspective view of a knife block showing my new design;

FIG. 2 is a rear bottom perspective view thereof;

FIG. 3 is a top perspective view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side view thereof, the right side view being a mirror image of FIG. 6 ;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

CLAIM The ornamental design for a knife block, as shown and described. 